Il 10/08/2014 13:32, Gal Hammer ha scritto:
> Based on Microsoft's sepecifications (paper can be dowloaded from
> http://go.microsoft.com/fwlink/?LinkId=260709), add a device
> description to the SSDT ACPI table.
>
> The GUID is set using a new "-vmgenid" command line parameter.
>
> Signed-off-by: Gal Hammer <gham...@redhat.com>
> ---
> hw/i386/acpi-build.c | 23 +++++++++++++++++++++++
> hw/i386/ssdt-misc.dsl | 33 +++++++++++++++++++++++++++++++++
> qemu-options.hx | 9 +++++++++
> vl.c | 11 +++++++++++
> 4 files changed, 76 insertions(+)
Please make this a new device (like pvpanic), instead of adding a new
command-line option.
>
> + Scope(\_SB) {
> +
> + Device(VMGI) {
> + Name(_HID, "QEMU0002")
> + Name(_CID, "VM_Gen_Counter")
> + Name(_DDN, "VM_Gen_Counter")
> +
> + ACPI_EXTRACT_NAME_DWORD_CONST ssdt_acpi_vm_gid_addr
> + Name(VGIA, 0x12345678)
> +
> + ACPI_EXTRACT_NAME_BUFFER16 ssdt_acpi_vm_gid
> + Name(VGID, Buffer(16) {
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })
> +
> + Method(_STA, 0, NotSerialized) {
> + Store(VGIA, Local0)
> + If (LEqual(Local0, Zero)) {
> + Return (0x00)
> + } Else {
> + Return (0x0F)
> + }
> + }
> +
> + Method(ADDR, 0, Serialized) {
> + Store(Package(2) { }, Local0)
> + Store(VGIA, Index(Local0, 0))
> + Store(0x0000, Index(Local0, 1))
> + return (Local0)
> + }
> + }
> + }
> +
Please either put this in the DSDT, or omit the Device altogether if you
put it in the SSDT and there is no VMGID device.
Thanks,
Paolo
